Features MAGNETIC AND RUSTPROOF: The 23 pieces drill bits have magnetic tips, making it easy to hold screws securely. They are completely rustproof and corrosion resistant, with a polished plated mirror finish. CR V MATERIAL: Heat treated CR V drill bits reduce wear and tear. The hardened vanadium steel sleeves increase rotational power. STRONG MAGNETIC: Enhanced magnetic impact drill bits help you easily pick up screws. The magnetic strength does not diminish after multiple uses. VERSATILE USE: The drill bit set can be used with electric screwdrivers, manual screwdrivers, drills, combination tools, and any standard drill bit. Perfect for automotive, repair, trucks, engines, motorcycles, computers, cable boxes, toys, interiors, da 23PCS: The set includes 23 different sizes of drill bits, including slot, cross, PZ, star, hex, suitable for different scenarios of use. Specification: Item Type: Screwdriver Bit Set Material: CR V Length: Approx. 100mm / 3.94in Tail Interface Size: Approx. 6.3mm / 0.25in Length of Ratchet Handle: Approx. 140mm / 5.51in 3PCS Cross Bit: PH1, PH2, PH3 3PCS PZ Bit: PZ1, PZ2, PZ3 5PCS Slot Bit: SL3(3mm), SL4(4mm), SL5(5mm), SL6(6mm), SL7(7mm) 6PCS Star Bit: T15, T20, T25, T27, T30 6PCS Hex Bit: H2, H2.5, H3 ,H4 ,H5, H6 Package List:23 x Drill Bit 1 x Ratchet Handle 1 x Storage Bag  Package List 23 x Drill Bit 1 x Ratchet Handle 1 x Storage Bag